Interaction Type of Balanced Device

ABSTRACT

An interactive type of a balancing device comprises a backpack body, a balancing device, left and right shoulder straps whose top end and tail end can be connected with or detachably be connected with the balancing device respectively. Said balancing device is consisted of a lower assembly and an upper assembly connected with the backpack body and supported by the lower assembly. The left and right shoulder straps move along a rotating assembly of the upper assembly. The lower assembly connected with the backpack body is consisted of a baffle plate and a moveable device which is installed in a hollow part of an interlayer of said baffle plate. Said upper assembly and lower assembly can be used at the same time or be used by itself.

TECHNICAL FIELDS OF THE INVENTION

This invention involves one kind of day-to-day used backpack shelf, particularly involving the use of a backpack interactive balanced device.

PRIOR ART

The backpack is now commonly used to carry heavier objects, by two straps crossing the left and right shoulder, but when the shoulders are moving up-down, the straps will be pull and the gravity center of the backpack will be changed at the same time, so that the two shoulders of the people will unevenly load. On the other hand, when the users' shoulders move up-down, the backpack weight will concentrate relatively on the moving shoulder, which will make the user to be difficult to move and be easier to lost balance because of the gravity center shift. The long time weight pressure and load imbalance will affect muscle thereby damage waist, resulting in lumbar spine, spinal disease. There is another movable device to balance the gravity center of the backpack, which works through the sliding belt at the bottom of the backpack driven by the shoulder strap. The shortcomings are: the sliding belt can not move fluently, be easier for knotting, when overloaded, the pressure would affect their ability to move, thereby affect the balancing effect of the backpack gravity center.

PURPOSE OF THE INVENTION

In order to settle the said problems, the purpose of this invention is to provide an interactive type of a balancing device to fix the backpack gravity center. This invention is simple in structure, easy to use, even when the user is moving, the loads on both shoulders will also keep even, and thereby make the back muscles work under uniform stress, which will reduce the harm caused by the uneven stress on the muscles.

TECHNOLOGY OF THE INVENTION

The purpose of this invention is achieved through the following methods: An interactive type of a balancing device comprising a backpack body, left and right shoulder straps, a balancing device, left and right shoulder straps whose top end and tail end can be connected with or be detachably connected with the balancing device, the said balancing device includes an upper assembly and a lower assembly;

-   -   upper assembly: connected with the backpack body by the boards         made from plastic or metal, and supported by the lower assembly,         the left and right shoulder straps move along a rotating         assembly of the upper assembly.     -   lower assembly: connected with the backpack body and is         consisted of a baffle plate and a movable device which is         installed in a hollow part of an interlayer of the said baffle         plate.

The above said movable device installed in the hollow part of an interlayer of the baffle plate, including at least one rolling wheel and the left and right sides of fixed wheels, the sliding belt moves left and right within a position channel along the rolling wheel and the fixed wheels driven by the left and right shoulder straps, and the rolling wheel is connected with the baffle plate by a spring.

The above said rotating assembly includes a positioning rotary wheel which is rotating around the axis, and a channel for the shoulder strap slipping which is set around the rotating wheel, thereby the left and right shoulder straps can move right or left side within the channel along the outer track of the wheel.

The rolling wheel in this invention may be one wheel or a group of wheels, while the sliding belt is controlled by the keyswitch installed between the rolling wheels, so that the strap could be locked or moved.

The baffle plate in this invention includes the center main plate as well as the left and right sliding plates, while the baffle plate is the hollow double-layer sandwich structure, the bottoms of the left and right sliding plate have the positioning components channels connected with the outside respectively, which will make the sliding belt move along the channel, while the sliding belt will extend from the channel to the end of the shoulder straps, as well as connected with the shoulder straps.

Using the above technology, the said upper assembly and the lower assembly may be fixed at the back of the backpack, and the lower assembly can be fixed or detachably installed at the bottom of the backpack or the inner or outer layer of the back of the backpack. When the shoulders of the user move up and down, left and right, the shoulder straps will drive the slipping belts slide left or right by the movable device within the lower assembly, at the same time the rotating assembly within the upper assembly will also make the shoulder straps move along its channel, so that the length of the left and right shoulder straps will be regulated immediately, to appropriately adjust the backpack gravity center, making the backpack weight to be always evenly apportioned to the two shoulders, so as to achieve the interaction balance: Similarly, the rotating assembly of the upper assembly will also make the shoulder straps to slip within the rotating assembly, achieving the purpose of interaction balance.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of the back of the backpack, showing the structure of the present invention;

FIG. 2 is the front perspective view of the baffle plate of the lower assembly;

FIG. 3 is the back perspective view of the baffle plate of the lower assembly;

FIG. 4 is the front view of the movable device of the lower assembly in the first example;

FIG. 5 is the front view of the movable device of the lower assembly in the second example;

FIG. 6 is the front view of the movable device of the lower assembly in the third example;

FIG. 7 is the front view of the movable device of the lower assembly in the forth example;

FIG. 8 is the front view of the movable device of the lower assembly in the fifth example;

FIG. 9 is the part separated view of FIG. 8 (shoulder strap being locked);

FIG. 10 is the part separated view of FIG. 8 (shoulder strap being stretched);

FIG. 11 is the back view of the backpack, showing the structure of the upper assembly in another example;

FIG. 12 is the side view of the swing assembly in FIG. 11 (being in swing state).

EMBODIMENTS

As shown in FIG. 1, the present invention includes the backpack body 3, left and right shoulder straps 4, 4′, and balancing device. The top end and tail end of the left and right shoulder straps 4, 4′ are connected with movably connected with the balancing device respectively, the said balancing device also includes the upper assembly 6 and the lower assembly 5;

-   -   lower assembly 5 is connected with the backpack body 3, composed         of baffle plate 1 and the movable device 2 which is fixed within         the hollow part of an interlayer of the said baffle plate;     -   upper assembly 6 is connected with the backpack body 3 through a         plate, supported by the lower assembly 5, the left and right         shoulder straps 4, 4′ move along the rotating assembly 61 of the         upper assembly 6.

The said lower assembly 5 is fixed on the backpack body 3 through baffle plate 1, the baffle plate 1 is hollow sandwich structure, within the interlayer there fixed a movable device 2, the movable device 2 is made up of one center-located rolling wheel and two fixed wheels at both side respectively, the slipping belt moves between the rolling wheel and the fixed wheels driven by the shoulder straps 4, 4′.

The said upper assembly 6 is connected with the backpack body 3, the rotating assembly 61 is rotated by a turning wheel around an axis, between the felloe of the turning wheel and the plate there is a channel 62, thereby the shoulder straps can move left or right through the turning wheel, and it is interaction, so that the gravity center of the backpack will maintain perpendicular to the ground.

Shoulder straps 4, 4′ and the slipping belt of the lower assembly 5 or the upper assembly 6, may be fixed or detachably connected together.

As the FIG. 2, FIG. 3 and FIG. 4 shown, the lower assembly 5 is equipped with a baffle plate 1, which is the hollow sandwich structure. The baffle plate is made up of the main plate 11 and the left and right sliding plates 12, 12′, and the left and right sliding plates 12, 12′ are joined with the sides of the main plate 11, as well as they can move along the main plate 11, at the same time, at the bottoms of the left and right sliding plates 12, 12′, there are positioning channels 13, 13′ connected to the outside, the sliding belt 23 extending outside from the movable device 2 can be connected or be detachably connected with the end of the left and right shoulder straps 4, 4′. There are many reinforcements 111 on the main plate 11, to enforce the support of the main plate 11.

The movable device 2 includes a rolling wheel 21 and fixed wheels 22, 22′ on the left and right sides, the rolling wheel 21 is fixed to the baffle plate 1 by a spring, the sliding belt 23 is a chain, extending from the positioning channels 13, 13′ and connected with the end of the left and right shoulder straps 4, 4′. Pulled by the left and right shoulder straps, the sliding belt 23 can slide along the rolling wheel 21, and the fixed wheels 22, 22′ slide, thereby enabling the gravity center of the backpack to maintain unchanged.

As it is shown in FIG. 5, another implementation way of the movable device 2: two rolling wheels 21,21′ can also be set up, with a keyswitch 24 between the two wheels 21 and 21′, controling the movement of the sliding belt 23 by the key of the keyswitch. When using, the keyswitch 24 locates in the open state, the sliding belt 23 can move freely; when the keyswitch 24 locates in the close state, the sliding belt will be locked, which will stop the sliding of the shoulder straps 4, 4′, the other aspects are the same as in FIG. 4.

As it is shown at the FIG. 6, the sliding belt 23 can be leather belt, plastic belt, plastic pole or metal pole. The keyswitch 24 is installed in the the rolling wheel 21. The sliding belt 23 passes across the rolling wheel 21 and keyswitch 24, slides controlled by the keyswitch 24, the other aspects are the same as in FIG. 4.

As it is shown in FIG. 7, the keyswitch 24 on the rolling wheel 21 is a spring.

As it is shown in the FIG. 8, FIG. 9, and FIG. 10, another implementation way of the movable device of the lower assembly in the present invention is that: there is a keyswitch 24 installed within the movable device 2. The fixed component 21 is fixed within the movable device 2, inserted by the keyswitch 24 to lock or open. There is a rotating axes on the fixed component 21, and the shoulder straps 23, 23′ can move along the rotating axes through the fixed wheels 22, 22′ at the left and right sides. The other aspects are the same as in FIG. 6 and FIG. 7.

When using, the left, right shoulder straps 23, 23′ can move along the fixed component 21. When it is need for fixing the length of the strap, the keyswitch 24 can be locked manually, so that the shoulder straps 23, 23′ can be locked in a fixed position, and the backpack can be balanced on the shoulders.

As it is shown in FIG. 11 and FIG. 12, another implementation way of the upper assembly in the present invention is that: the upper assembly 6 is fixed on the back of the backpack, while the swing assembly 61 is a long strip-shaped swing assembly, whose middle part is connected with the upper assembly 6 through the rotating axes 63. The top of the shoulder straps 4,4′ are connected with the upper symmetrical sides of the swing assembly 61 .The end part of the shoulder straps 4, 4′ extends to the bottom of the backpack and connects with the lower assembly, or connects together directly. The said shoulder straps 4, 4′ will pull the swing assembly 61 turning around the rotating axes 63 under the external force, at this time, the swing assembly 61 will follow the lever principle and make the gravity center of the backpack in line with the ground, so as to achieve the balance interaction effects.

When using, as the human shoulders move, the backpack will swing at the effect of its own gravity center, while the swing assembly connected with the shoulder straps will also swing to appropriate position around the rotating axes 63, which will make the backpack to be always perpendicular to the ground, thus to balance the pressure on the human shoulders. This lower assembly can be used independently by fixing on the backpack, while can also be used together with the upper assembly.

The upper assembly and the lower assembly described in this invention can be used at the same time, can be used separately. When using together, the movable angle and the flexibility will be greatly enhanced. In this invention, the lower assembly could be installed independently, or installed together with the upper assembly, which is up to the needs of the user. The installation ways are also very flexible, which can be fixed to the rear, inner, and outer part of the backpack, and so on, can also be fixed in the shelf, and covered directly on the backpack.

The applicability of this invention is very broad, which may be installed in different backpacks, can also be used as the back-strap for children, or be used on the tie bar backpack with wheels, or even be used at the back-shelf of the camera, the military backpack, as well as the oxygen bottles back-shelf used by firemen and so on. This invention will balance the stress on the user's shoulders, while the sliding of the shoulder straps may be controlled by the control valve of the movable device, so as to reduce the human body consumptions, make the human body free and flexible. 

1. An interactive type of a balancing device comprising a backpack body (3) for containing materials, left and right shoulder straps (4, 4′), a balancing device, and the top end and tail end of the left and right shoulder straps (4, 4′) connected with or detachably be connected with the balancing device respectively, wherein the said balancing device comprising: a lower assembly (5): connected with the backpack body (3) and is consisted of a baffle plate (1) and a movable device (2) which is installed in a hollow part of a interlayer of said baffle plate (1). a upper assembly (6): connected with the backpack body (3) through a plastic or metal plate, and supported by the lower assembly (1), the left and right shoulder straps (4,4′) move along a rotating assembly (61) of the upper assembly (6).
 2. An interactive type of a balancing device according to claim 1, wherein said movable device (2) installed in the hollow part of a interlayer of the said baffle plate (1), includes at least one rolling wheel (21) and the left and right sides of fixed wheels (22, 22′), the sliding belt (23) driven by the left and right shoulder straps (4, 4′) moves along the rolling wheel (21) and the fixed wheels (22, 22′) within the positioning component channels (13, 13′).
 3. An interactive type of a balancing device according to claim 1, wherein said rotating assembly (61) includes a positioning rotary wheel which is rotating around an axis, and the left and right shoulder straps (4, 4′) move left or right side within the component channel (62) along the outer track of the wheel.
 4. An interactive type of a balancing device according to claim 1, wherein said baffle plate (1) includes a center main plate (11) as well as the left and right sliding plates (12, 12′), while the baffle plate (1) is the hollow double-layer sandwich structure, and at the bottoms of the sliding plates (12, 12′) have the positioning components channels (13, 13′) connected with the outside respectively, so as to make the sliding belt (23) move along the channel.
 5. An interactive type of a balancing device according to claim 2, wherein said rolling wheel (21) is connected with the baffle plate (11) through a spring.
 6. An interactive type of a balancing device according to claim 2, wherein said sliding belt (23) is connected or is detachably connected with the ends of the left and right shoulder straps (4, 4′).
 7. An interactive type of a balancing device according to claim 2, wherein said rolling wheel (21) may be of one wheel or two wheels, while the sliding belt (23) is controlled by the keyswitch (24) installed between the rolling wheels (21,21′).
 8. An interactive type of a balancing device according to claim 7, wherein said keyswitch (24) is installed within the rolling wheel (21), and the sliding belt (23) pass through the keyswitch (24) and connects with the left fixing wheel (22) and the right fixing wheel (22′).
 9. An interactive type of a balancing device according to claim 3, wherein there are provided a sliding channel (62) around the said rotating assembly (61), allowing the shoulder straps (4, 4′) sliding in.
 10. An interactive type of a balancing device according to claim 3, wherein said there are provided a locking switch inside the rotating assembly (61) to stop the shoulder straps (4, 4′) sliding along its outer track. 